/* welcome */
.welcome {
    width: 1300px;
    height: 443px;
    margin: 106px 370px 121px;
}

/* .welcome>p{提取公共样式
    width: 1020px;
	height: 38px;
    /* margin-top: 28px; 
    margin: 28px 74px  0 74px;
    text-align: center;
    font-family: SimSun;
	font-size: 14px;
    line-height: 24px;
	color: #666666;
    /* box-sizing: border-box;设置padding值时要考虑
} */
.welcome .classic {
    width: 1180px;
    height: 234px;
    margin-top: 106px;
    display: flex;
    justify-content: space-around;
}

.welcome .classic li {
    flex: 0 0 225px;
    /* 设置弹性盒子后 设置的宽度将无法作用 */
    /* width: 225px; */
    height: 234px;
    text-align: center;
}

.welcome .classic li h3 {
    font-family: FranklinGothic-Medium;
    font-size: 20px;
    color: #333333;
}

.welcome .classic li h4 {
    /* 文字只设置样式不设置宽高 */
    font-family: MicrosoftYaHei-Bold;
    font-size: 14px;
    color: #666666;
}

.welcome .classic li p {
    font-family: SimSun;
    font-size: 12px;
    line-height: 24px;
    color: #999999;
    margin-top: 28px;
}

.pro-center {
    width: 100%;
    margin-bottom: 120px;
    position: relative;
}

.pro-center .title::after {
    left: 950px;
}

.pro-center .pro-list {
    margin-top: 51px;
    width: 100%;
    /* display: flex; */
    /* 使用弹性盒子不设置固定宽度会出现水平滚动条 */
    overflow: hidden;
}

.pro-center .pro-list li {
    /* flex: 0 0 320px;     */
    width: 16.666%;
    float: left;
    /* 使用浮动更简单 */
    /* border: 1px solid transparent; */
    box-sizing: border-box;
}

.pro-center .pro-list li:hover .pro-title {
    /* box-shadow: 2px 0px 2px #01a1ff; */
    background-color: #01a1ff;
    color: #fff;

}

.pro-center .pro-list li:hover .pro-title .add {
    background-color: #fff;
    color: #01a1ff;
}

.pro-center .pro-list li a img {
    display: block;
    /* 消除a标签嵌套img标签后高度多出几个像素 */
}

.pro-center .pro-list li .pro-title {
    width: 320px;
    height: 30px;
    display: block;
    /* 行级标签识别宽高 */
    background-color: #e5e5e5;
    position: relative;
    font-family: SourceHanSansCN-Regular;
    font-size: 14px;
    line-height: 30px;
    /* 双倍字体大小 实现垂直居中 */
    color: #333333;
}

.pro-center .pro-list li .pro-title span:first-child {
    padding-left: 16px;
}

.pro-center .pro-list li .pro-title .add {
    width: 15px;
    height: 15px;
    line-height: 15px;
    position: absolute;
    display: block;
    top: 7px;
    right: 16px;
    background-color: #999999;
    border-radius: 50%;
    color: #cfcfcf;
    text-align: center;
}

.pro-center .prev {
    top: 270px;
    left: 280px;
}

.pro-center .next {
    top: 270px;
    right: 280px;
}

/* news center */
.news-center {
    width: 1300px;
    margin: 0 auto;
    margin-bottom: 120px;
}

.news-show {
    margin-top: 50px;
    overflow: hidden;
    position: relative;
}

.news-show .news-left {
    float: left;
}

.news-show .news-left p {
    width: 555px;
    height: 40px;
    text-transform: uppercase;
    background-color: #01a1ff;
    font-family: SourceHanSansCN-Regular;
    font-size: 18px;
    line-height: 40px;
    color: #ffffff;
    /* 让文字右移10个像素 */
    padding-left: 10px;
    box-sizing: border-box;
    /* 设置padding后 会超出边框 解决方案
    1.设置boxsizing 2.将width减去padding值
    */
    /* 让文字上移 */
    position: absolute;
    bottom: 15px;
}

.news-show .news-left ul {
    margin-top: -2px;
    overflow: hidden;
}

.news-show .news-left li {
    float: left;
    width: 111px;
    height: 5px;
    background-color: #e5e5e5;
}

.news-show .news-left .news-active {
    background-color: #01a1ff;
}

.news-show .news-right {
    width: 605px;
    float: right;
}

.news-detail {
    width: 605px;
    overflow: hidden;
}

.news-detail .news-date {
    float: left;
    width: 70px;
}

.news-detail .news-date span:first-child {
    display: block;
    width: 70px;
    height: 57px;
    line-height: 57px;
    text-align: center;
    font-family: Helvetica-Condensed-Black-Se;
    font-size: 40px;
    color: #01a1ff;
    border: 1px solid #01a1ff;
    border-bottom: none;
}

.news-detail .news-date span:last-child {
    display: block;
    width: 72px;
    height: 20px;
    line-height: 20px;
    /* 行高=盒子高度，实现文字垂直居中 */
    text-align: center;
    background-color: #01a1ff;
    font-family: Helvetica-Conth;
    font-size: 14px;
    color: #ffffff;
}

.news-detail .news-content {
    width: 525px;
    float: right;
}

.news-detail .news-content h3 {
    width: 525px;
    height: 24px;
    font-family: SourceHanSansCN-Regular;
    font-size: 18px;
    line-height: 24px;
    color: #01a1ff;
}

.news-detail .news-content p {
    width: 520px;
    height: 50px;
    margin-top: 10px;
    font-family: SimSun;
    font-size: 12px;
    line-height: 20px;
    color: #999999;
}

.news-list {
    width: 601px;
    margin-top: 10px;
}

.news-list li a {
    padding: 11px 0;
    line-height: 36px;
    font-family: SimSun;
    font-size: 14px;
    color: #666666;
}

.news-list li {
    width: 600px;
    height: 36px;
    border-bottom: 1px dotted #cccccc;
    position: relative;
}

.news-list li:first-child {
    border-top: 1px dotted #cccccc;
}

.news-list li small {
    font-family: SimSun;
    font-size: 14px;
    color: #666666;
    position: absolute;
    right: 0px;
}

.news-list li a:hover {
    color: #01a1ff;
}

/* video center */
.video-center {
    width: 1300px;
    margin: 0 auto 144px;
    position: relative;
}

.video-center .video-list {
    width: 1200px;
    display: flex;
    margin: 50px auto 0;
}

.video-center .video-list li {
    /* width: 260px; */
    display: 0 0 260px;
    margin-right: 53px;
    text-align: center;
    /* border: 5px solid transparent; */
}

.video-center .video-list li a {
    display: block;
    position: relative;
}

.video-center .video-list li a img {
    overflow: hidden;
    /* 清除a标签内嵌套img高度多出的几个像素 */
}

.video-center .video-list li .play {
    display: block;
    width: 45px;
    height: 45px;
    border: 2px solid #fff;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.5);
    /* opacity: 0.5; */
    position: absolute;
    top: 75px;
    left: 108px;
}

.video-center .video-list li .play::after {
    /* 使用伪元素画三角符号 */
    content: '';
    display: block;
    border: 15px solid transparent;
    border-left-color: #fff;
    position: absolute;
    left: 18px;
    top: 8px;
}

.video-center .video-list li:last-child {
    margin-right: 0;
}

.video-center .video-list li h3 {
    /* width: 169px;
	height: 16px; */
    margin-top: 25px;
    font-family: SourceHanSansCN-Regular;
    font-size: 16px;
    line-height: 20px;
    color: #333333;
}

.video-center .video-list li p {
    /* width: 198px;
	height: 12px; */
    margin-top: 10px;
    font-family: SimSun;
    font-size: 12px;
    line-height: 20px;
    color: #999999;
}

.video-center .video-list li:hover, .video-list li:first-child {
    /* border: 5px solid #b5e4ff; */
    box-shadow: 0px 8px 5px 5px#b5e4ff;
}

.video-center .video-list li:hover h3, .video-list li:first-child h3 {
    color: #01a1ff;
}

.video-center .video-list li:hover .play, .video-list li:first-child .play {
    width: 54px;
    height: 54px;
    border: 3px solid #01a1ff;
    background-color: rgba(255, 255, 255, 0.5);
}

.video-center .video-list li:hover .play::after, .video-center .video-list li:first-child .play::after {
    border: 20px solid transparent;
    border-left-color: #01a1ff;
}

.video-center .prev {
    top: 240px;
    left: 0px;
}

.video-center .next {
    top: 240px;
    right: 0px;
}